142505122 has 8 divisors (see below), whose sum is σ = 214952400. Its totient is φ = 70854324.

The previous prime is 142505113. The next prime is 142505123. The reversal of 142505122 is 221505241.

142505122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142505093 and 142505102.

It is not an unprimeable number, because it can be changed into a prime (142505123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198672 + ... + 199387.

It is an arithmetic number, because the mean of its divisors is an integer number (26869050).

Almost surely, 2^142505122 is an apocalyptic number.

142505122 is a deficient number, since it is larger than the sum of its proper divisors (72447278).

142505122 is a wasteful number, since it uses less digits than its factorization.

142505122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398240.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 142505122 is about 11937.5509213574. The cubic root of 142505122 is about 522.3282214253.

The spelling of 142505122 in words is "one hundred forty-two million, five hundred five thousand, one hundred twenty-two".